Across
- 5. cell walls rigid outer boundary of a cell used for support and protection
- 7. study of animals
- 8. cell that has a nucleus and other organelles
- 9. cells outside protection cells
- 12. arrangement of body parts to create mirror images
- 13. study of life
- 14. can move to find food
- 15. smallest and specific category
Down
- 1. cells that move and transport nutrient and sperm
- 2. cells that filter the nutrients using mucus
- 3. specialization of many cells
- 4. no body part to create a mirror image
- 6. sharp rigid structures used for support
- 10. obtains energy from outside sources
- 11. large opening at the top of the sponge to let material out.